Mathematics, 05.05.2020 07:59 avanelson01
There has been a trend toward less driving in the last few years, especially by young people. From 2001 to 2009, the annual vehicle miles traveled by people decreased. Assume the standard deviation was 2000 miles in 2009. Suppose you would like to conduct a survey to develop a 90% confidence interval of the annual vehicle-miles per person for people. A margin of error of 100 miles is desired. How large of a sample should be used for the survey?
Answers: 2
Mathematics, 21.06.2019 18:20
Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.
Answers: 3
Mathematics, 21.06.2019 20:30
If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
Answers: 2
Mathematics, 21.06.2019 22:30
How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000
Answers: 1
Mathematics, 21.06.2019 23:30
Fill in the table with whole numbers to make 430 in five different ways
Answers: 1
There has been a trend toward less driving in the last few years, especially by young people. From 2...
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